Table of Contents
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Job Overview
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About Submer
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Available Jobs and Related Roles
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Senior Mechanical Engineer Job Description
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Key Job Responsibilities
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Why This Is a Standout Saudi Arabia Mechanical Engineer Jobs 2025 Opportunity
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Requirements for the Senior Mechanical Engineer Role
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How to Apply
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FAQs About Saudi Arabia Mechanical Engineer Jobs 2025 at Submer
Job Overview
If you’re exploring Saudi Arabia Mechanical Engineer Jobs 2025 and want to work at the cutting edge of sustainable technology, this Senior Mechanical Engineer role with Submer is a rare opportunity.
Submer is hiring a Senior Mechanical Engineer to lead the design and delivery of high-density data center mechanical systems in Saudi Arabia, covering both traditional air-cooled facilities and advanced direct liquid cooling (DLC) environments. This is a permanent, full-time position open only to Saudi nationals, in line with Saudization requirements.
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Job Title: Senior Mechanical Engineer
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Company: Submer
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Department: Design & Build
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Location: Riyadh or Eastern Province, Saudi Arabia
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Work Modality: Temporarily remote / hybrid-friendly
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Type of Contract: Full Time / Permanent
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Start Date: ASAP
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Eligibility: Saudi nationals only
The role sits at the heart of mission-critical infrastructure, enabling next-generation compute platforms through safe, efficient, and resilient cooling solutions.

About Submer
Submer is redefining how data centers are built, integrated, and operated, with a central focus on:
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Sustainability – dramatically reducing environmental impact
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Efficiency – improving performance and energy usage
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Innovation – pioneering advanced cooling technologies, especially direct liquid cooling
The company designs solutions that reduce power and water usage while supporting high-density compute platforms. Submer describes itself as:
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Purpose-driven – working toward a more sustainable digital future
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Passionate about innovation – constantly pushing boundaries in data center design
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Globally growing – with a growing international presence and a scale-up mindset
Joining Submer in Saudi Arabia means working at the intersection of mechanical engineering, sustainability, and digital infrastructure, supporting high-impact projects in a rapidly growing region.
Available Jobs and Related Roles
While this article focuses on the Senior Mechanical Engineer position, candidates searching for Saudi Arabia Mechanical Engineer Jobs 2025 may also be interested in related roles typically found at companies like Submer, such as:
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Data Center Mechanical Design Engineer
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Senior HVAC and Cooling Systems Engineer
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Data Center Commissioning Engineer – MEP
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Thermal Systems Engineer – Liquid Cooling
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Project Engineer – Mission Critical Facilities
These related role types help broaden your view of the career paths connected to sustainable data centers and advanced cooling technologies in Saudi Arabia.
(See more engineering jobs in Saudi Arabia)
Senior Mechanical Engineer Job Description
In this Senior Mechanical Engineer role, you’ll be responsible for leading the mechanical and cooling design for high-density data centers across Saudi Arabia, including:
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Conventional air-cooled facilities
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Direct liquid cooling (DLC) environments
You will ensure that critical cooling infrastructure—from chillers and fan walls to CRAC/CRAH units, CDU loops, and rack-level liquid cooling—is:
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Safe
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Efficient
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Resilient
The ideal candidate:
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Has a strong track record in mechanical design for mission-critical facilities, especially data centers
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Enjoys working in collaborative, fast-paced, multidisciplinary teams
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Can own the full lifecycle of mechanical systems from concept through commissioning
If you’re a Saudi national mechanical engineer who loves complex systems, sustainability, and high-density computing, this role sits right at the sweet spot.
Key Job Responsibilities
Mechanical System Design & Engineering
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Develop detailed designs for data center mechanical and cooling systems, including:
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Chillers and cooling towers
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CRAC/CRAH units
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Pumps, piping, and valves
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CDUs (Coolant Distribution Units)
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FW (fan wall systems)
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RDHx (rear door heat exchangers)
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DLC loops and rack-level cooling
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Define control strategies for primary and secondary cooling loops, supporting both air-based and DLC environments.
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Produce full design documentation, such as:
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Schematics and P&IDs
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Layouts and hydraulic diagrams
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Specifications and equipment schedules
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Evaluate and select equipment suppliers, ensuring compliance with:
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Project performance requirements
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Client standards and technical expectations
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Thermal Performance & Analysis
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Perform load calculations, hydraulic modeling, and energy efficiency analysis.
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Optimize chilled water, glycol, and liquid cooling systems to meet PUE (Power Usage Effectiveness) and WUE (Water Usage Effectiveness) targets.
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Assess and design redundancy schemes (N, N+1, 2N), understanding their impact on:
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System performance
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Reliability
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Cost and complexity
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Integrate mechanical design with electrical and IT infrastructure, ensuring seamless coordination across disciplines.
Commissioning & Delivery
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Support procurement processes, including technical reviews and submittal evaluations.
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Oversee factory acceptance tests (FATs) and site acceptance tests (SATs).
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Lead or support commissioning and system validation activities.
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Troubleshoot thermal or mechanical issues, conduct root cause analysis, and implement corrective actions.
Compliance & Documentation
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Ensure designs comply with:
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International standards
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Local building codes in Saudi Arabia
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ASHRAE guidelines
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Uptime Institute best practices for data center design
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Develop and maintain technical documentation, including:
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Test protocols
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Operations & Maintenance (O&M) manuals
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Method statements and procedures
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Contribute to risk assessments and ensure safety compliance for fluid handling and mechanical systems.
Collaboration & Expertise
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Partner with clients, architects, electrical engineers, and IT teams to deliver integrated solutions.
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Serve as a subject matter expert on high-density and DLC cooling strategies.
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Mentor junior mechanical engineers, promoting knowledge sharing and best practices within the organization.
Why This Is a Standout Saudi Arabia Mechanical Engineer Jobs 2025 Opportunity
Work at the Cutting Edge of Data Center Technology
This is not a typical HVAC or building services role. You will be working on:
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High-density compute environments
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Advanced direct liquid cooling solutions
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Hybrid systems combining air and liquid cooling
If you’re passionate about next-generation cooling and thermal management, this role puts you right at the front line.
Strong Sustainability Mission
Submer’s core is sustainability—reducing environmental impact while improving performance. As a Senior Mechanical Engineer, your work contributes to:
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Lower energy consumption
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Better water usage efficiency
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A more sustainable digital infrastructure
This makes it one of the most meaningful Saudi Arabia Mechanical Engineer Jobs 2025 for engineers who care about climate and efficiency.
High-Impact, Mission-Critical Work
You’ll be designing systems that support mission-critical operations—data centers that run essential services and platforms. Your designs will directly influence:
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System uptime and resilience
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Operational safety
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Performance of advanced compute platforms (AI, cloud, HPC, etc.)
Ownership and Seniority
As a Senior Mechanical Engineer, you’re not just executing tasks—you’re leading:
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Mechanical design strategies
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Technical decisions and trade-offs
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Delivery of complex engineering solutions
This makes the role ideal for experienced mechanical engineers ready for bigger responsibility.
Career Growth in a Fast-Growing Scale-Up
Submer describes itself as a fast-growing scale-up with a clear mission and global ambition. That translates into:
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Rapid exposure to new projects and technologies
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Opportunities to shape processes, standards, and best practices
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A clear path for career evolution as the company grows in Saudi Arabia and globally
Attractive Compensation and Work Environment
Submer offers:
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An attractive compensation package reflecting your expertise and experience
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A work environment characterized by:
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Friendliness
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International diversity
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Flexibility and hybrid-friendly approaches
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This combination makes it a competitive opportunity within Saudi Arabia Mechanical Engineer Jobs 2025 focused on mission-critical infrastructure.
Requirements for the Senior Mechanical Engineer Role
To succeed and be selected for this position, you’ll need to meet the following key requirements.
Education
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Bachelor’s or Master’s degree in Mechanical Engineering (or a closely related field).
Experience
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Minimum 7 years of experience in mission-critical mechanical design, with proven delivery of data center projects.
Technical Skills
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Strong knowledge of:
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HVAC systems
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Chilled water systems
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Liquid cooling systems, including DLC, CDUs, RDHx, and related components
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Proficiency with mechanical design and analysis tools, such as:
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Revit
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AutoCAD MEP
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HAP
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Pipe-Flo
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CFD tools for thermal and flow simulations
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Familiarity with:
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Tier certification requirements
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ASHRAE guidelines
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International standards and best practices for data centers
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Soft Skills and Professional Attributes
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Proven analytical, problem-solving, and troubleshooting skills.
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Strong communication skills, able to work in cross-disciplinary teams and client-facing environments.
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Ability to manage complex projects under tight deadlines, coordinating multiple stakeholders.
Eligibility and Location
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This role is open only to Saudi nationals due to Saudization requirements.
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You should be able to work from Riyadh or Eastern Province, with a temporarily remote / hybrid arrangement as defined by Submer.
How to Apply
If this Senior Mechanical Engineer role matches your ambitions within Saudi Arabia Mechanical Engineer Jobs 2025, here’s how to move forward:
FAQs About Saudi Arabia Mechanical Engineer Jobs 2025 at Submer
1. Is this Senior Mechanical Engineer role open to all nationalities?
No. This specific role is only open to Saudi nationals, in line with Saudization requirements.
2. Do I need prior data center experience?
Yes. The job requires minimum 7 years of mission-critical mechanical design experience, with demonstrable data center project delivery. Experience in other mission-critical facilities is helpful but data center experience is a key expectation.
3. What tools should I be comfortable with?
You should be proficient in mechanical design and analysis tools such as Revit, AutoCAD MEP, HAP, Pipe-Flo, and ideally CFD tools for thermal and flow analysis.
4. Is the role fully remote?
The role is based in Riyadh or Eastern Province with a temporarily remote / hybrid-friendly approach. You should expect a mix of remote work and on-site presence as required by projects.
5. How does this job compare to other Saudi Arabia Mechanical Engineer Jobs 2025?
This role stands out because it:
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Focuses on advanced cooling and DLC for high-density data centers
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Combines sustainability, innovation, and mission-critical design
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Offers a chance to work in a fast-growing, purpose-driven scale-up with global ambition